Question

what is the acceleration of a car moving in a straight line that changes its velocity from 30 metre per second to 60 metre per second in 10 seconds​

Answer 1

Answer:

initial velocity =30m

final velocity =60 m

time = 10s

acceleration = v- u/t

=30-60/10 =3m/s

Explanation:

Answer 2

Given:

           Initial velocity: 30m/s

           Final velocity : 60m/s

           time taken : 10 seconds

To find :

            Acceleration =?

Solutions:

As we know,

The S.I. unit of acceleration is m/s².

From Equation of motion i.e.,

Final velocity = Initial velocity  + Acceleration × Time

   Acceleration = $\frac{Final velocity - Initial velocity}{Time taken}$

Acceleration can be calculated using this formula :

Acceleration=$\frac{Final velocity - Initial velocity}{Time taken}$ = $\frac{60-30}{10} = \frac{30}{10}$  = 3 m/s²

The Acceleration of car is 3 m/s².